JP2015163834A - temperature control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost temperature control system capable of improving workability.SOLUTION: A temperature control system comprises: a water unit 2 which generates hot water or cold water, and which has a control part 14; headers 21 and 22 connected to the water unit 2 through water pipes 52 and 53 for guiding the hot water or the cold water generated by the water unit 2 to predetermined supply destinations 27 and 28, and also for guiding return water produced at the predetermined supply destinations 27 and 28 to the water unit 2; and a plurality of thermal valves 23 to 26 connected to the header 21. The water unit 2 and the headers 21 and 22 are installed to sandwich a wall for forming a room in a building therebetween, and the control part 14 is connected to each of the thermal valves 23 to 26 through communication lines 35 and 36, and controls the opening/closing operation of each of the thermal valves 23 to 26.

Description

  The present invention relates to a temperature control system that performs temperature control by supplying a heat medium to a temperature control object.

  As a temperature control system that controls the temperature by supplying a heat medium to a radiator installed indoors or under the floor, there is a hot water heater disclosed in JP-A-2005-37019 (Cited document 1). In the conventional hot water heater, water is heated by exchanging heat of the combustion gas of the hot water burner with a heat exchanger for hot water supply. And it has the connection port for supplying the produced | generated hot water to the several floor heating apparatus installed in the exterior indoor.

  Moreover, in the hot water heater, a plurality of hot water generated by the hot water heat exchanger to the floor heating device is normally installed in the hot water heater according to the number of connection ports. This is done by a thermal valve.

  However, the hot water heater disclosed in the above cited reference 1 has the following problems.

  That is, the plurality of thermal valves that supply and stop the hot water generated by the hot water supply heat exchanger to the plurality of floor heaters are installed in the hot water heater installed outdoors. Therefore, it is necessary to connect a plurality of long pipes between each of the plurality of thermal valves installed in the outdoor hot water heater and each indoor floor heater. In addition, it is necessary to make a plurality of holes for passing each of a plurality of pipes or a large hole for passing them together in the wall of the house. Therefore, there are problems that workability is poor and costs are high.

  Therefore, in order to solve such problems of workability, the following temperature control system can be considered.

  First, a temperature control system in which the hot water unit is provided separately from the heat source unit and a plurality of thermal valves are provided in the hot water unit can be considered. In this temperature control system, when the hot water unit and the heat source unit are installed outdoors, there is a problem similar to that of the hot water heater disclosed in the cited document 1. Furthermore, when only the hot water unit is installed indoors, the above problem of workability is solved, but there are new problems such as securing a space for installing the hot water unit indoors and measures against pump noise. Occur.

  In addition, the temperature control unit has a built-in hot water unit and a heat source unit having a hot water unit control unit installed outdoors, while a header unit having a plurality of thermal valves and a control unit dedicated to the thermal valve is installed indoors. A system is conceivable. In addition, a heat source unit with a built-in hot water unit and a heat source unit control unit are installed outdoors, while a plurality of heat valves installed indoors are controlled by a dedicated control unit installed indoors. A system is conceivable. In these temperature control systems, it is necessary to newly provide a control unit dedicated to the thermal valve only for the operation control and communication of the thermoelectric valve, and there is a problem that the cost increases.

JP 2005-37019 A

  Then, the subject of this invention is providing the cheap temperature control system which can improve workability.

In order to solve the above problems, the temperature control system of the present invention is:
A water unit for generating hot or cold water and having a control unit;
The hot water or cold water generated by the water unit is guided to a predetermined supply destination, while the return water generated at the predetermined supply destination is connected to the water unit via a water pipe that guides the water unit. Header,
A plurality of thermal valves connected to the header,
The water unit and the header are installed across a wall for forming a room in the building,
The controller is connected to the thermal valves via a communication line, and controls the opening / closing operation of the thermal valves.

  Here, as the “wall”, for example, a wall provided between a room in a building and a space outside the building, a wall provided between a room in the building and a space in a garage or a warehouse, etc. Is included.

  According to the above configuration, the water unit that generates hot water or cold water and the header to which a plurality of thermal valves are connected are installed across the wall for forming a room in the building. Water pipes for guiding the hot water or cold water generated by the unit to a predetermined supply destination while guiding the return water generated at the predetermined supply destination to the water unit are an outgoing water port and a return water port of the water unit. And two water pipes connecting the header connection port.

  Therefore, at the time of construction of the water unit, the wall interposed between the water unit and the header only needs to be perforated to improve the workability and cost. Can be reduced. In addition, the appearance of the wall can be improved.

  Furthermore, the control part which is provided in the said water unit and controls the opening / closing operation | movement of each thermal valve is connected to each said thermal valve via the communication line. Therefore, it is not necessary to provide a dedicated control unit for the thermal valve, and the cost can be reduced.

In the temperature control system of one embodiment,
The water unit is installed outdoors, while the header and the plurality of thermal valves are installed indoors.

  According to this embodiment, the water unit is installed outdoors, while the header and the plurality of thermal valves are installed indoors. Therefore, the wall interposed between the water unit and the header includes the outer wall of the building.

  The outer wall of the building determines the quality of the house's impression. Therefore, if a plurality of holes or large holes for passing a plurality of pipes are opened on the outer wall of the building, the impression of the house is deteriorated.

  According to this embodiment, at the time of construction of the water unit, it is only necessary to open a hole for passing the two water pipes on the outer wall of the building, thereby reducing costs and greatly improving the appearance of the building. It is possible to improve and prevent a decline in the home impression.

In the temperature control system of one embodiment,
The relay unit is provided in the header unit having the header and the thermal valve, and includes a relay terminal that relays the communication line.
The communication line mainly comprises a header unit external communication line disposed outside the header unit and a header unit communication line disposed within the header unit.
The communication line outside the header unit is connected to the communication line inside the header unit via the relay terminal.

  According to this embodiment, by connecting the communication line outside the header unit and the communication line inside the header unit via the relay terminal provided in the header unit, the control unit and each thermal valve are connected. The communication line is configured. Therefore, by connecting the relay terminal and each thermal valve in advance with the communication line in the header unit, the communication line outside the header unit is directly connected to each thermal valve in the construction of the water unit. There is no need to do this, and the workability can be further improved.

In the temperature control system of one embodiment,
A mechanical relay connected to the communication line is provided.

  According to this embodiment, since the relay connected to the communication line is not a semiconductor relay that easily generates noise, but a mechanical relay that does not easily generate noise, the total length of the communication line is 5 m. Even when the length is as long as ˜20 m, noise generation can be reduced.

In the temperature control system of one embodiment,
The header and the plurality of thermal valves are installed under an indoor floor.

  According to this embodiment, since the header and the plurality of thermal valves are installed under the floor where the floor cooling and heating panel connected to the header and the thermal valves is installed, the header and the thermal valve are installed. It is possible to shorten the routing of the pipe connecting the valve and the floor cooling / heating panel, and it is possible to eliminate the header unit from the room and to refresh the room.

In the temperature control system of one embodiment,
A heat source unit that generates a high-temperature heat medium or a low-temperature heat medium and supplies the heat unit to the water unit;
The water unit is configured integrally with the heat source unit.

  According to this embodiment, piping work and wiring work between the heat source unit and the water unit are not required, and further workability can be improved.

  As is clear from the above, in the temperature control system of the present invention, a water unit that generates hot water or cold water and a header to which a plurality of thermal valves are connected are installed with a wall interposed therebetween. Therefore, the hot water or cold water generated by the water unit and the water pipe for guiding the generated return water are connected to the two outlet ports and the return water port of the water unit and the connection port of the header. Can be water piping.

  That is, according to this invention, at the time of construction of the water unit, the number of pipes routed between the water unit and the wall can be reduced. Furthermore, the wall interposed between the water unit and the header need only have a hole for passing the two water pipes. Therefore, workability can be improved and costs can be reduced. In addition, the appearance of the wall can be greatly improved.

It is a figure which shows schematic structure in the temperature control system of this invention. It is a figure which shows the whole structure of the water unit in FIG. It is a figure which shows schematic structure of the temperature control system different from FIG.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. FIG. 1 is a diagram showing a schematic configuration in the temperature control system of the present embodiment.

  The temperature control system includes an outdoor unit 1, a water unit 2 connected to the outdoor unit 1, and a header unit 3 connected to the water unit 2. Here, the outdoor unit 1 and the water unit 2 are installed outdoors, while the header unit 3 is installed indoors.

  The outdoor unit 1 includes a compressor 4, a four-way valve 5, an outdoor heat exchanger 6, an electric expansion valve 7 and an accumulator 8. One end side of the outdoor heat exchanger 6 is connected to one end side of the electric expansion valve 7. Further, by switching the four-way valve 5, during the heating operation, the compressor 4 is connected to the other end side of the outdoor heat exchanger 6 on the suction side and connected to one end side of the plate-type water heat exchanger 9 on the discharge side. Has been. On the other hand, during the cooling operation, the compressor 4 has the suction side connected to one end side of the plate-type water heat exchanger 9 and the discharge side connected to the other end side of the outdoor heat exchanger 6.

  The outdoor unit 1 includes, for example, first to third temperature sensors 10 to 12 made of a thermistor and an outdoor control device 13 that receives a signal indicating the temperature detected by the first to third temperature sensors 10 to 12. Have.

  The first temperature sensor 10 detects the temperature of the refrigerant as the heat medium between the compressor 4 and the four-way valve 5. The second temperature sensor 11 is attached to the outdoor heat exchanger 6 and detects the temperature of the refrigerant in the outdoor heat exchanger 6. The third temperature sensor 12 is disposed in the vicinity of the outdoor heat exchanger 6 and detects the outside air temperature.

  The outdoor control device 13 is an inverter (not shown) of the compressor 4 so that the heat exchange efficiency of the plate type water heat exchanger 9 is optimized based on the detection values from the temperature sensors 10 to 12. And the opening degree of the electric expansion valve 7 is controlled. Furthermore, the outdoor control device 13 is connected to the control unit 14 of the water unit 2 via a signal line (not shown).

  The outdoor heat exchanger 6, the compressor 4, the plate type water heat exchanger 9 and the electric expansion valve 7 are connected in order to form a refrigerant circuit.

  The water unit 2 is installed outdoors and has a plate type water heat exchanger 9, an expansion tank 15, and a circulation pump 16.

  The plate type water heat exchanger 9 functions as a condenser or an evaporator of the refrigerant circuit. The plate-type water heat exchanger 9 is provided with a flow path through which the refrigerant from the outdoor unit 1 flows and a flow path through which return water from the floor cooling / heating panels 27 and 28 installed indoors flows. Further, the expansion tank 15 is provided with positive and negative pressure valves, and hot water or cold water from the plate type water heat exchanger 9 is stored therein. Furthermore, a water supply port 15a is provided in the upper part of the expansion tank 15, and water can be replenished into the expansion tank 15 from the water supply port 15a when necessary. The floor cooling / heating panels 27 and 28 are an example of a predetermined supply destination.

  The circulation pump 16 is connected to the expansion tank 15 on the suction side and connected to the forward header 21 of the header unit 3 on the discharge side. Thereby, the circulation pump 16 can send hot water or cold water heat-exchanged with the refrigerant passing through the plate-type water heat exchanger 9 to the floor cooling and heating panels 27 and 28 connected to the outgoing header 21.

  The water unit 2 includes first and second water temperature sensors 17 and 18 made of, for example, a thermistor, a refrigerant temperature sensor 19 made of, for example, a thermistor, a pressure sensor 20, and a control unit 14.

  The first water temperature sensor 17 detects the temperature of hot water or cold water flowing from the plate-type water heat exchanger 9 toward the floor cooling / heating panels 27 and 28. The second water temperature sensor 18 detects the temperature of hot water or cold water flowing from the floor cooling / heating panels 27, 28 toward the plate-type water heat exchanger 9. The refrigerant temperature sensor 19 detects the temperature of the refrigerant between the electric expansion valve 7 and the plate type water heat exchanger 9. The pressure sensor 20 is disposed in the vicinity of the plate-type water heat exchanger 9, detects the refrigerant pressure between the four-way valve 5 and the plate-type water heat exchanger 9, and sends a signal indicating this pressure to the control unit 14. To send.

  The control unit 14 sends a signal indicating the set temperature of the floor cooling / heating panels 27 and 28 to the outdoor control device 13. Further, the control unit 14 determines the circulation pump 16 and the first to fourth heats based on the instruction signal from the outdoor control device 13 and the temperature of the hot water or the cold water detected by the first and second water temperature sensors 17 and 18. The valve trains 23 to 26 are controlled.

  The header unit 3 is installed indoors and has a forward header 21 and a return header 22. One end of first to fourth thermal valves 23 to 26 is connected to the forward header 21. In addition, water inlets of the first and second floor cooling / heating panels 27 and 28 are connected to the other ends of the first and second thermal valves 23 and 24. The return header 22 is connected to water outlets of the first and second floor cooling / heating panels 27 and 28. Thus, the hot water or cold water of the first and second floor cooling / heating panels 27, 28 is returned to the water unit 2 so that water can circulate through the water circuit 29.

  The first and second floor cooling and heating panels 27 and 28 are formed in a meandering shape and have water circulation pipes 30 and 31 to which hot water or cold water is supplied from the plate-type water heat exchanger 9.

  A remote control 32 for setting the temperature of the first and second floor cooling / heating panels 27 and 28 is installed indoors. The remote control 32 and the control unit 14 of the water unit 2 are connected by a communication line 33. ing.

  Further, the control unit 14 of the water unit 2 and the first to fourth thermal valves 23 to 26 of the header unit 3 are connected by a communication line subjected to double insulation or reinforced insulation. In that case, the relay terminal 34 is installed in the header box (not shown) which is arrange | positioned in the header unit 3 and accommodates the forward header 21, the return header 22, and the 1st-4th thermal valve 23-26. Each of four internal terminals (not shown) in the terminal 34 and each drive part of the first to fourth thermal valves 23 to 26 are connected by a communication line 35 in the header unit. And the said internal terminal of the relay terminal 34 and the control part 14 of the water unit 2 are connected with the communication line 36 outside a header unit.

  By doing so, if the relay terminal 34 installed in the header box and the respective drive parts of the first to fourth thermal valves 23 to 26 are connected in advance by the communication line 35 in the header unit, the outdoor unit At the time of construction of the unit 1 and the water unit 2, it is not necessary to connect the header unit external communication line 36 directly to the respective drive portions of the first to fourth thermal valves 23 to 26, and the workability can be improved.

  At this time, the relay used for the header unit communication line 35 and the header unit communication line 36 is SSR (Solid State Relay) because the total length of the communication lines 34 and 35 is as long as 5 to 20 m. If a semiconductor relay such as) is used, noise is generated. Therefore, in this embodiment, noise is reduced by using a mechanical relay.

  The temperature control system operates as follows.

  First, during the heating operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and flows into the plate-type water heat exchanger 9. That is, high-temperature and high-pressure refrigerant is supplied to the plate type water heat exchanger 9. Then, the low-temperature and high-pressure refrigerant condensed by exchanging heat with water in the plate-type water heat exchanger 9 is expanded and decompressed by the electric expansion valve 7, and absorbs heat from the outdoor air and evaporates in the outdoor heat exchanger 6. Then, it passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4. In that case, the water which flows through the plate-type water heat exchanger 9 becomes warm water by heat exchange with the refrigerant, and flows toward the first and second floor cooling / heating panels 27 and 28.

  During such heating operation, when the temperatures of the first and second floor cooling / heating panels 27 and 28 are set by communication from the remote controller 32, the control unit 14 cooperates with the outdoor control device 13 of the outdoor unit 1. Thus, the on / off operation of the first and second thermal valves 23 and 24 is controlled so that the temperature of the first and second floor cooling and heating panels 27 and 28 becomes the set temperature.

  Next, during the cooling operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and is supplied to the outdoor heat exchanger 6 to be condensed by heat exchange with outdoor air. The condensed refrigerant is decompressed by the electric expansion valve 7 and flows into the plate-type water heat exchanger 9. That is, the plate-type water heat exchanger 9 is supplied with a low-temperature and low-pressure refrigerant. The refrigerant that has absorbed heat from the water in the plate-type water heat exchanger 9 passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4. At that time, the water flowing in the plate type water heat exchanger 9 becomes cold water by heat exchange with the refrigerant and flows toward the first and second floor cooling and heating panels 27 and 28.

  During the cooling operation, when the temperatures of the first and second floor cooling / heating panels 27 and 28 are set by communication from the remote controller 32, the control unit 14 cooperates with the outdoor control device 13 of the outdoor unit 1. Thus, the on / off operation of the first and second thermal valves 23 and 24 is controlled so that the temperature of the first and second floor cooling and heating panels 27 and 28 becomes the set temperature.

  By the way, in this Embodiment, as mentioned above, while the said water unit 2 is installed outdoors, the header unit 3 is installed indoors. The header unit 3 is provided with a forward header 21 to which the first to fourth thermal valves 23 to 26 are connected, and a return header 22. On the other hand, the water unit 2 is provided with a control unit 14 that controls on / off of the first to fourth thermal valves 23 to 26.

  Therefore, the warm water or the cold water goes from the water unit 2 to the first to fourth thermal valves 23 to 26 only by one system to the connection port 21a of the forward header 21. Similarly, the return of water from the first to fourth thermal valves 23 to 26 to the water unit 2 may be performed by only one system from the connection port 22a of the return header 22.

  FIG. 2 is a diagram showing an overall configuration of the water unit 2. The water unit 2 includes a rectangular parallelepiped casing 41, a circulation pump 16 attached and fixed to a bottom frame 41 a of the casing 41, and a plate-type water heat exchanger 9 disposed in the vicinity of the side frame 41 b of the casing 41. It is out.

  Connected to the plate-type water heat exchanger 9 are a first refrigerant pipe 42 for supplying or discharging refrigerant from the compressor 4 and a second refrigerant pipe 43 for discharging or supplying the refrigerant. Yes. Furthermore, one end of a first water pipe 44 that feeds water to the circulation pump 16 and one end of a second water pipe 45 that returns water from the return header 22 are connected to the plate-type water heat exchanger 9. Yes.

  The other end of the first water supply pipe 44 is connected to the suction port of the circulation pump 16, and one end of the discharge pipe 46 is connected to the discharge port. A return water port 48 is connected to the other end of the second water pipe 45. In addition, an outgoing water port 51 is connected to the other end of the discharge pipe 46.

  As described above, in the present embodiment, as shown in FIG. 1, the incoming water port of the water unit 2 is the incoming water or cold water from the water unit 2 to the first to fourth thermal valves 23 to 26. This is performed through one first water pipe 52 that connects 51 and the connection port 21 a of the forward header 21. The return of water from the first and second floor cooling / heating panels 27 and 28 to the water unit 2 is a single second water that connects the connection port 22a of the return header 22 and the return water port 48 of the water unit 2. This is done via the piping 53.

  Therefore, at the time of construction of the outdoor unit 1 and the water unit 2, two water pipes for passing the first water pipe 52 for return and the second water pipe 53 for return are passed through the wall of the building. It is only necessary to open a single hole or a hole for collectively passing, and a small hole for passing the thin communication line 33 that connects the remote controller 32 and the control unit 14 of the water unit 2. Can also be reduced. In addition, the appearance of the building can be greatly improved. Or even if it is a case where the hole for passing the two water pipes 52 and 53 together and the hole for passing the communication line 33 are combined with one hole, the first to fourth thermal valves 23 to Compared with the case where 26 is installed outdoors, the diameter of the hole opened in the wall of a building can be made small. Therefore, the workability and the appearance of the building can be improved.

  In addition, the control unit 14 of the water unit 2 and the first to fourth thermal valves 23 to 26 of the header unit 3 communicate with each other through the relay terminal 34 installed in the header box. The line 35 and the header unit external communication line 36 are used. Therefore, when the outdoor unit 1 and the water unit 2 are installed, there is no need for the troublesome work of directly connecting the header unit external communication line 36 to the respective drive parts of the first to fourth thermal valves 23 to 26. The property can be further improved.

  At that time, as a relay used for the indoor side communication line 35 and the outdoor side communication line 36, not a semiconductor relay that easily generates noise but a mechanical relay that hardly generates noise is used. Accordingly, noise can be reduced even when the total length of the communication lines 34 and 35 is as long as 5 to 20 m.

  Hereinafter, a modification of FIG. 1 will be described.

  FIG. 3 is a diagram showing a schematic configuration of a temperature control system that can also perform indoor air conditioning. 3, the same members as those in FIG. 1 are denoted by the same reference numerals as those in FIG. 1, and detailed description thereof is omitted.

  In this modification, in addition to the outdoor unit 1, the water unit 2 connected to the outdoor unit 1, and the header unit 3 connected to the water unit 2, the first, Second indoor heat exchangers 61 and 62 are provided. Here, the first indoor heat exchanger 61 has one end connected to the outdoor heat exchanger 6 via the first electric expansion valve 63 and the other end connected to the four-way valve 5. The second indoor heat exchanger 62 has one end connected to the outdoor heat exchanger 6 via the second electric expansion valve 64 and the other end connected to the four-way valve 5.

  Also, a fourth temperature sensor 65 that detects the temperature of the refrigerant between the electric expansion valve 7 and the plate-type water heat exchanger 9, and a position between the first electric expansion valve 63 and the first indoor heat exchanger 61. It has the 5th temperature sensor 66 which detects the temperature of a refrigerant | coolant, and the 6th temperature sensor 67 which detects the temperature of the refrigerant | coolant between the 2nd electric expansion valve 64 and the 2nd indoor heat exchanger 62.

  Further, a seventh temperature sensor 68 that detects the temperature of the refrigerant between the four-way valve 5 and the plate-type water heat exchanger 9, and the temperature of the refrigerant between the four-way valve 5 and the first indoor heat exchanger 61 are as follows. It has an eighth temperature sensor 69 for detecting, and a ninth temperature sensor 70 for detecting the temperature of the refrigerant between the four-way valve 5 and the second indoor heat exchanger 62.

  Furthermore, a tenth temperature sensor 71 that detects the temperature of the refrigerant in the first indoor heat exchanger 61 is attached to the first indoor heat exchanger 61. Further, an eleventh temperature sensor 72 that detects the room temperature is disposed in the vicinity of the first indoor heat exchanger 61. Similarly, a twelfth temperature sensor 73 that detects the temperature of the refrigerant in the second indoor heat exchanger 62 is attached to the second indoor heat exchanger 62. A thirteenth temperature sensor 74 that detects the room temperature is disposed in the vicinity of the second indoor heat exchanger 62.

  And the said outdoor control apparatus 13 heats the plate-type water heat exchanger 9 and the 1st, 2nd indoor heat exchanger 61,62 based on the detected value from each said temperature sensor 10-12,65-74. The inverter (not shown) of the compressor 4 is controlled so that the exchange efficiency is optimal, and the opening degrees of the electric expansion valve 7 and the first and second electric expansion valves 63 and 64 are controlled.

  The temperature control system operates as follows.

  First, during the heating operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and partly flows into the plate-type water heat exchanger 9, while the other is the first and second indoor heat exchangers. 61,62. Then, the refrigerant that has been condensed by exchanging heat with the indoor air in the first and second indoor heat exchangers 61 and 62 is expanded and depressurized by the first and second electric expansion valves 63 and 64, and the outdoor heat exchanger. 6, after absorbing heat from outdoor air and evaporating, it passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4.

  In this case, the operations on the side of the water unit 2 and the header unit 3 including the plate type water heat exchanger 9 are as described in FIG.

  Next, during the cooling operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and is supplied to the outdoor heat exchanger 6 to be condensed by heat exchange with outdoor air. A part of the condensed refrigerant is decompressed by the electric expansion valve 7 and flows into the plate type water heat exchanger 9, and the other is decompressed by the first and second electric expansion valves 63 and 64 to be the first and second electric expansion valves. 2 flows into the indoor heat exchangers 61 and 62. Then, the refrigerant that has absorbed heat and evaporated from the indoor air in the first and second indoor heat exchangers 61 and 62 passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4.

  In this case, the operations on the side of the water unit 2 and the header unit 3 including the plate type water heat exchanger 9 are as described in FIG.

  Thus, according to this modification, the indoor air conditioning by the first and second indoor heat exchangers 61 and 62 and the floor air conditioning by the plate type water heat exchanger 9 can be performed in parallel. is there.

  In the above embodiment and its modification, the outdoor unit 1 and the water unit 2 are separately configured. In that case, piping work and wiring work between the outdoor unit 1 and the water unit 2 become unnecessary, and further improvement in workability can be achieved.

  Further, in the above-described embodiment and its modification, the specific installation location of the header unit 3 having the forward header 21, the return header 22, the first to fourth thermal valves 23 to 26, and the relay terminal 34 is clearly indicated. However, it is desirable to install it under the floor where the first and second floor cooling / heating panels 27 and 28 connected to the first to fourth thermal valves 23 to 26 and the return header 22 are installed. In that case, the piping for connecting the first and second thermal valves 23 and 24 and the return header 22 to the first and second floor cooling and heating panels 27 and 28 is shortened, and the header unit 3 is installed from the room. The room can be refreshed without it.

  Moreover, in the said embodiment and its modification, while connecting the 1st-4th thermal valve 23-26 to the said going header 21, the return header 22 of the 1st, 2nd floor air conditioning panel 27,28 is connected. The water outlet is connected. However, the present invention is not limited to this, and the water inlets of the first and second floor cooling / heating panels 27, 28 are connected to the forward header 21, while the first to fourth thermal valves 23 are connected to the return header 22. ~ 26 may be connected.

  Next, another modified example different from the modified example shown in FIG. 3 will be described.

  In the embodiment and the modification thereof, the water unit 2 is installed outdoors. However, the water unit 2 is not always installed outdoors. For example, in a cold district or the like, in order to prevent the return water from flowing from the first and second floor cooling / heating panels 27 and 28 flowing in the second water pipe 53 of the water circuit 29 to the water unit 2, The first and second floor cooling / heating panels 27 and 28 may be installed in, for example, a parking lot, a basement, a storage room, or the like partitioned by a wall.

  Even in that case, when the outdoor unit 1 and the water unit 2 are constructed, a refrigerant flow path that connects the electric expansion valve 7 and the plate-type water heat exchanger 9 to the wall of the building, and the four-way valve 5 and It is only necessary to open two holes for passing two refrigerant pipes of the refrigerant flow path connecting the plate type water heat exchanger 9 or a hole for passing them together, improving workability and reducing costs. Can do. In addition, the appearance of the building can be greatly improved.

  Further, on the wall that divides the room in which the first and second floor cooling / heating panels 27 and 28 are installed and the room in which the water unit 2 is installed, the first water pipe 52 for return and the second for return. Two holes for passing two water pipes with the water pipe 53 or a hole for passing them together, and a small communication line 33 for connecting the remote control 32 and the control unit 14 of the water unit 2 through a small communication line 33 It is only necessary to open a hole, so that the workability can be improved and the cost can be reduced. In addition, the appearance of the walls separating the two rooms can be greatly improved.

  In the above-described embodiment and its modifications, at least one of the floor cooling / heating panels 27, 28 is a ceiling cooling / heating panel, ceiling cooling panel, ceiling heating panel, wall cooling / heating panel, wall cooling panel, wall heating panel, or It may be replaced with a heat exchange terminal such as an indoor radiator. That is, as another example of the predetermined supply destination, there is a heat exchange terminal such as a ceiling cooling / heating panel, a ceiling cooling panel, a ceiling heating panel, a wall cooling / heating panel, a wall cooling panel, a wall heating panel, or an indoor radiator. .

1 ... outdoor unit,
2 ... water unit,
3 ... Header unit,
4 ... Compressor,
5 ... Four-way valve,
6 ... outdoor heat exchanger,
7 ... Electric expansion valve,
9 ... Plate type water heat exchanger,
13 ... Outdoor control device 14 ... Control unit,
15 ... expansion tank,
16 ... circulation pump,
21 ... Outgoing header,
22 ... Return header,
23 to 26 ... first to fourth thermal valves,
27, 28 ... 1st, 2nd floor air conditioning panel,
29 ... Water circuit,
32 ... remote control,
33 ... communication line,
34 ... Relay terminal,
35 ... Communication line in header unit,
36 ... Communication line outside the header unit,
44, 45 ... first and second water pipes,
46 ... discharge pipe,
48 ... Return water port,
51. Outbound water port,
52, 53 ... first and second water pipes,
61, 62 ... first and second indoor heat exchangers,
63, 64: first and second electric expansion valves.

  The present invention relates to a temperature control system that performs temperature control by supplying a heat medium to a temperature control object.

  As a temperature control system that controls the temperature by supplying a heat medium to a radiator installed indoors or under the floor, there is a hot water heater disclosed in JP-A-2005-37019 (Cited document 1). In the conventional hot water heater, water is heated by exchanging heat of the combustion gas of the hot water burner with a heat exchanger for hot water supply. And it has the connection port for supplying the produced | generated hot water to the several floor heating apparatus installed in the exterior indoor.

  Moreover, in the hot water heater, a plurality of hot water generated by the hot water heat exchanger to the floor heating device is normally installed in the hot water heater according to the number of connection ports. This is done by a thermal valve.

  However, the hot water heater disclosed in the above cited reference 1 has the following problems.

  That is, the plurality of thermal valves that supply and stop the hot water generated by the hot water supply heat exchanger to the plurality of floor heaters are installed in the hot water heater installed outdoors. Therefore, it is necessary to connect a plurality of long pipes between each of the plurality of thermal valves installed in the outdoor hot water heater and each indoor floor heater. In addition, it is necessary to make a plurality of holes for passing each of a plurality of pipes or a large hole for passing them together in the wall of the house. Therefore, there are problems that workability is poor and costs are high.

  Therefore, in order to solve such problems of workability, the following temperature control system can be considered.

  First, a temperature control system in which the hot water unit is provided separately from the heat source unit and a plurality of thermal valves are provided in the hot water unit is conceivable. In this temperature control system, when the hot water unit and the heat source unit are installed outdoors, there is a problem similar to that of the hot water heater disclosed in the cited document 1. Furthermore, when only the hot water unit is installed indoors, the above problem of workability is solved, but there are new problems such as securing a space for installing the hot water unit indoors and measures against pump noise. Occur.

  In addition, the temperature control unit has a built-in hot water unit and a heat source unit having a hot water unit control unit installed outdoors, while a header unit having a plurality of thermal valves and a control unit dedicated to the thermal valve is installed indoors. A system is conceivable. In addition, a heat source unit with a built-in hot water unit and a heat source unit control unit are installed outdoors, while a plurality of heat valves installed indoors are controlled by a dedicated control unit installed indoors. A system is conceivable. In these temperature control systems, it is necessary to newly provide a control unit dedicated to the thermal valve only for the operation control and communication of the thermoelectric valve, and there is a problem that the cost increases.

JP 2005-37019 A

  Then, the subject of this invention is providing the cheap temperature control system which can improve workability.

In order to solve the above problems, the temperature control system of the present invention is:
A water unit for generating hot or cold water and having a control unit;
The hot water or cold water generated by the water unit is guided to a predetermined supply destination, while the return water generated at the predetermined supply destination is connected to the water unit via a water pipe that guides the water unit. Header,
A plurality of thermal valves connected to the header ;
A remote control for setting the temperature of the predetermined supply destination;
A first communication line provided between the control unit and the remote control;
A second communication line provided between the control unit and the plurality of thermal valves, for controlling the opening and closing operations of the thermal valves .
The water unit and the header are installed across a wall for forming a room in the building, and the water unit is installed outside the unit, while the header, the plurality of thermal valves, and the remote controller Is installed in the above room ,
The control unit is connected to the remote controller via the first communication line, and is connected to the thermal valves via the second communication line, and relates to the set temperature of the predetermined supply destination. The communication is performed with the remote controller, and on the basis of the result of the communication, the opening / closing operation of each thermal valve is controlled so that the temperature of the predetermined supply destination becomes the set temperature. Yes.

  Here, as the “wall”, for example, a wall provided between a room in a building and a space outside the building, a wall provided between a room in the building and a space in a garage or a warehouse, etc. Is included.

  According to the above configuration, the water unit that generates hot water or cold water and the header to which a plurality of thermal valves are connected are installed across the wall for forming a room in the building. Water pipes for guiding the hot water or cold water generated by the unit to a predetermined supply destination while guiding the return water generated at the predetermined supply destination to the water unit are an outgoing water port and a return water port of the water unit. And two water pipes connecting the header connection port.

  Therefore, at the time of construction of the water unit, the wall interposed between the water unit and the header only needs to be perforated to improve the workability and cost. Can be reduced. In addition, the appearance of the wall can be improved.

Furthermore, the control part which is provided in the said water unit and controls the opening / closing operation | movement of each thermal valve is connected to each said thermal valve via the 2nd communication line. Therefore, it is not necessary to provide a dedicated control unit for the thermal valve, and the cost can be reduced.

In the temperature control system of one embodiment,
The water unit is installed outdoors, while the header and the plurality of thermal valves are installed indoors.

  According to this embodiment, the water unit is installed outdoors, while the header and the plurality of thermal valves are installed indoors. Therefore, the wall interposed between the water unit and the header includes the outer wall of the building.

  The outer wall of the building determines the quality of the house's impression. Therefore, if a plurality of holes or large holes for passing a plurality of pipes are opened on the outer wall of the building, the impression of the house is deteriorated.

  According to this embodiment, at the time of construction of the water unit, it is only necessary to open a hole for passing the two water pipes on the outer wall of the building, thereby reducing costs and greatly improving the appearance of the building. It is possible to improve and prevent a decline in the home impression.

In the temperature control system of one embodiment,
The relay unit is provided in a header unit having the header and the thermal valve, and includes a relay terminal that relays the second communication line.
The second communication line is mainly composed of a header unit external communication line arranged outside the header unit and a header unit communication line arranged inside the header unit.
The communication line outside the header unit is connected to the communication line inside the header unit via the relay terminal.

According to this embodiment, by connecting the communication line outside the header unit and the communication line inside the header unit via the relay terminal provided in the header unit, the control unit and each thermal valve are connected. The second communication line is configured. Therefore, by connecting the relay terminal and each thermal valve in advance with the communication line in the header unit, the communication line outside the header unit is directly connected to each thermal valve in the construction of the water unit. There is no need to do this, and the workability can be further improved.

In the temperature control system of one embodiment,
A mechanical relay connected to the second communication line is provided.

According to this embodiment, the relay connected to the second communication line is not a semiconductor relay that easily generates noise, but a mechanical relay that does not easily generate noise. Even when the length is as long as 5 to 20 m, it is possible to reduce noise generation.

In the temperature control system of one embodiment,
The header and the plurality of thermal valves are installed under an indoor floor.

  According to this embodiment, since the header and the plurality of thermal valves are installed under the floor where the floor cooling and heating panel connected to the header and the thermal valves is installed, the header and the thermal valve are installed. It is possible to shorten the routing of the pipe connecting the valve and the floor cooling / heating panel, and it is possible to eliminate the header unit from the room and to refresh the room.

In the temperature control system of one embodiment,
A heat source unit that generates a high-temperature heat medium or a low-temperature heat medium and supplies the heat unit to the water unit;
The water unit is configured integrally with the heat source unit.

  According to this embodiment, piping work and wiring work between the heat source unit and the water unit are not required, and further workability can be improved.

  As is clear from the above, in the temperature control system of the present invention, a water unit that generates hot water or cold water and a header to which a plurality of thermal valves are connected are installed with a wall interposed therebetween. Therefore, the hot water or cold water generated by the water unit and the water pipe for guiding the generated return water are connected to the two outlet ports and the return water port of the water unit and the connection port of the header. Can be water piping.

  That is, according to this invention, at the time of construction of the water unit, the number of pipes routed between the water unit and the wall can be reduced. Furthermore, the wall interposed between the water unit and the header need only have a hole for passing the two water pipes. Therefore, workability can be improved and costs can be reduced. In addition, the appearance of the wall can be greatly improved.

It is a figure which shows schematic structure in the temperature control system of this invention. It is a figure which shows the whole structure of the water unit in FIG. It is a figure which shows schematic structure of the temperature control system different from FIG.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. FIG. 1 is a diagram showing a schematic configuration in the temperature control system of the present embodiment.

  The temperature control system includes an outdoor unit 1, a water unit 2 connected to the outdoor unit 1, and a header unit 3 connected to the water unit 2. Here, the outdoor unit 1 and the water unit 2 are installed outdoors, while the header unit 3 is installed indoors.

  The outdoor unit 1 includes a compressor 4, a four-way valve 5, an outdoor heat exchanger 6, an electric expansion valve 7 and an accumulator 8. One end side of the outdoor heat exchanger 6 is connected to one end side of the electric expansion valve 7. Further, by switching the four-way valve 5, during the heating operation, the compressor 4 is connected to the other end side of the outdoor heat exchanger 6 on the suction side and connected to one end side of the plate-type water heat exchanger 9 on the discharge side. Has been. On the other hand, during the cooling operation, the compressor 4 has the suction side connected to one end side of the plate-type water heat exchanger 9 and the discharge side connected to the other end side of the outdoor heat exchanger 6.

  The outdoor unit 1 includes, for example, first to third temperature sensors 10 to 12 made of a thermistor and an outdoor control device 13 that receives a signal indicating the temperature detected by the first to third temperature sensors 10 to 12. Have.

  The first temperature sensor 10 detects the temperature of the refrigerant as the heat medium between the compressor 4 and the four-way valve 5. The second temperature sensor 11 is attached to the outdoor heat exchanger 6 and detects the temperature of the refrigerant in the outdoor heat exchanger 6. The third temperature sensor 12 is disposed in the vicinity of the outdoor heat exchanger 6 and detects the outside air temperature.

  The outdoor control device 13 is an inverter (not shown) of the compressor 4 so that the heat exchange efficiency of the plate type water heat exchanger 9 is optimized based on the detection values from the temperature sensors 10 to 12. And the opening degree of the electric expansion valve 7 is controlled. Furthermore, the outdoor control device 13 is connected to the control unit 14 of the water unit 2 via a signal line (not shown).

  The outdoor heat exchanger 6, the compressor 4, the plate type water heat exchanger 9 and the electric expansion valve 7 are connected in order to form a refrigerant circuit.

  The water unit 2 is installed outdoors and has a plate type water heat exchanger 9, an expansion tank 15, and a circulation pump 16.

The plate type water heat exchanger 9 functions as a condenser or an evaporator of the refrigerant circuit. The plate-type water heat exchanger 9 is provided with a flow path through which the refrigerant from the outdoor unit 1 flows and a flow path through which return water from the floor cooling / heating panels 27 and 28 installed indoors flows.
Further, the expansion tank 15 is provided with positive and negative pressure valves, and hot water or cold water from the plate type water heat exchanger 9 is stored therein. Furthermore, a water supply port 15a is provided in the upper part of the expansion tank 15, and water can be replenished into the expansion tank 15 from the water supply port 15a when necessary. The floor cooling / heating panels 27 and 28 are an example of a predetermined supply destination.

  The circulation pump 16 is connected to the expansion tank 15 on the suction side and connected to the forward header 21 of the header unit 3 on the discharge side. Thereby, the circulation pump 16 can send hot water or cold water heat-exchanged with the refrigerant passing through the plate-type water heat exchanger 9 to the floor cooling and heating panels 27 and 28 connected to the outgoing header 21.

  The water unit 2 includes first and second water temperature sensors 17 and 18 made of, for example, a thermistor, a refrigerant temperature sensor 19 made of, for example, a thermistor, a pressure sensor 20, and a control unit 14.

  The first water temperature sensor 17 detects the temperature of hot water or cold water flowing from the plate-type water heat exchanger 9 toward the floor cooling / heating panels 27 and 28. The second water temperature sensor 18 detects the temperature of hot water or cold water flowing from the floor cooling / heating panels 27, 28 toward the plate-type water heat exchanger 9. The refrigerant temperature sensor 19 detects the temperature of the refrigerant between the electric expansion valve 7 and the plate type water heat exchanger 9. The pressure sensor 20 is disposed in the vicinity of the plate-type water heat exchanger 9, detects the refrigerant pressure between the four-way valve 5 and the plate-type water heat exchanger 9, and sends a signal indicating this pressure to the control unit 14. To send.

  The control unit 14 sends a signal indicating the set temperature of the floor cooling / heating panels 27 and 28 to the outdoor control device 13. Further, the control unit 14 determines the circulation pump 16 and the first to fourth heats based on the instruction signal from the outdoor control device 13 and the temperature of the hot water or the cold water detected by the first and second water temperature sensors 17 and 18. The valve trains 23 to 26 are controlled.

  The header unit 3 is installed indoors and has a forward header 21 and a return header 22. One end of first to fourth thermal valves 23 to 26 is connected to the forward header 21. In addition, water inlets of the first and second floor cooling / heating panels 27 and 28 are connected to the other ends of the first and second thermal valves 23 and 24. The return header 22 is connected to water outlets of the first and second floor cooling / heating panels 27 and 28. Thus, the hot water or cold water of the first and second floor cooling / heating panels 27, 28 is returned to the water unit 2 so that water can circulate through the water circuit 29.

  The first and second floor cooling and heating panels 27 and 28 are formed in a meandering shape and have water circulation pipes 30 and 31 to which hot water or cold water is supplied from the plate-type water heat exchanger 9.

  A remote control 32 for setting the temperature of the first and second floor cooling / heating panels 27 and 28 is installed indoors. The remote control 32 and the control unit 14 of the water unit 2 are connected by a communication line 33. ing.

  Further, the control unit 14 of the water unit 2 and the first to fourth thermal valves 23 to 26 of the header unit 3 are connected by a communication line subjected to double insulation or reinforced insulation. In that case, the relay terminal 34 is installed in the header box (not shown) which is arrange | positioned in the header unit 3 and accommodates the forward header 21, the return header 22, and the 1st-4th thermal valve 23-26. Each of four internal terminals (not shown) in the terminal 34 and each drive part of the first to fourth thermal valves 23 to 26 are connected by a communication line 35 in the header unit. And the said internal terminal of the relay terminal 34 and the control part 14 of the water unit 2 are connected with the communication line 36 outside a header unit.

  By doing so, if the relay terminal 34 installed in the header box and the respective drive parts of the first to fourth thermal valves 23 to 26 are connected in advance by the communication line 35 in the header unit, the outdoor unit At the time of construction of the unit 1 and the water unit 2, it is not necessary to connect the header unit external communication line 36 directly to the respective drive portions of the first to fourth thermal valves 23 to 26, and the workability can be improved.

  At this time, the relay used for the header unit communication line 35 and the header unit communication line 36 is SSR (Solid State Relay) because the total length of the communication lines 34 and 35 is as long as 5 to 20 m. If a semiconductor relay such as) is used, noise is generated. Therefore, in this embodiment, noise is reduced by using a mechanical relay.

  The temperature control system operates as follows.

  First, during the heating operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and flows into the plate-type water heat exchanger 9. That is, high-temperature and high-pressure refrigerant is supplied to the plate type water heat exchanger 9. Then, the low-temperature and high-pressure refrigerant condensed by exchanging heat with water in the plate-type water heat exchanger 9 is expanded and decompressed by the electric expansion valve 7, and absorbs heat from the outdoor air and evaporates in the outdoor heat exchanger 6. Then, it passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4. In that case, the water which flows through the plate-type water heat exchanger 9 becomes warm water by heat exchange with the refrigerant, and flows toward the first and second floor cooling / heating panels 27 and 28.

  During such heating operation, when the temperatures of the first and second floor cooling / heating panels 27 and 28 are set by communication from the remote controller 32, the control unit 14 cooperates with the outdoor control device 13 of the outdoor unit 1. Thus, the on / off operation of the first and second thermal valves 23 and 24 is controlled so that the temperature of the first and second floor cooling and heating panels 27 and 28 becomes the set temperature.

  Next, during the cooling operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and is supplied to the outdoor heat exchanger 6 to be condensed by heat exchange with outdoor air. The condensed refrigerant is decompressed by the electric expansion valve 7 and flows into the plate-type water heat exchanger 9. That is, the plate-type water heat exchanger 9 is supplied with a low-temperature and low-pressure refrigerant. The refrigerant that has absorbed heat from the water in the plate-type water heat exchanger 9 passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4. At that time, the water flowing in the plate type water heat exchanger 9 becomes cold water by heat exchange with the refrigerant and flows toward the first and second floor cooling and heating panels 27 and 28.

  During the cooling operation, when the temperatures of the first and second floor cooling / heating panels 27 and 28 are set by communication from the remote controller 32, the control unit 14 cooperates with the outdoor control device 13 of the outdoor unit 1. Thus, the on / off operation of the first and second thermal valves 23 and 24 is controlled so that the temperature of the first and second floor cooling and heating panels 27 and 28 becomes the set temperature.

  By the way, in this Embodiment, as mentioned above, while the said water unit 2 is installed outdoors, the header unit 3 is installed indoors. The header unit 3 is provided with a forward header 21 to which the first to fourth thermal valves 23 to 26 are connected, and a return header 22. On the other hand, the water unit 2 is provided with a control unit 14 that controls on / off of the first to fourth thermal valves 23 to 26.

  Therefore, the warm water or the cold water goes from the water unit 2 to the first to fourth thermal valves 23 to 26 only by one system to the connection port 21a of the forward header 21. Similarly, the return of water from the first to fourth thermal valves 23 to 26 to the water unit 2 may be performed by only one system from the connection port 22a of the return header 22.

  FIG. 2 is a diagram showing an overall configuration of the water unit 2. The water unit 2 includes a rectangular parallelepiped casing 41, a circulation pump 16 attached and fixed to a bottom frame 41 a of the casing 41, and a plate-type water heat exchanger 9 disposed in the vicinity of the side frame 41 b of the casing 41. It is out.

  Connected to the plate-type water heat exchanger 9 are a first refrigerant pipe 42 for supplying or discharging refrigerant from the compressor 4 and a second refrigerant pipe 43 for discharging or supplying the refrigerant. Yes. Furthermore, one end of a first water pipe 44 that feeds water to the circulation pump 16 and one end of a second water pipe 45 that returns water from the return header 22 are connected to the plate-type water heat exchanger 9. Yes.

  The other end of the first water supply pipe 44 is connected to the suction port of the circulation pump 16, and one end of the discharge pipe 46 is connected to the discharge port. A return water port 48 is connected to the other end of the second water pipe 45. In addition, an outgoing water port 51 is connected to the other end of the discharge pipe 46.

  As described above, in the present embodiment, as shown in FIG. 1, the incoming water port of the water unit 2 is the incoming water or cold water from the water unit 2 to the first to fourth thermal valves 23 to 26. This is performed through one first water pipe 52 that connects 51 and the connection port 21 a of the forward header 21. The return of water from the first and second floor cooling / heating panels 27 and 28 to the water unit 2 is a single second water that connects the connection port 22a of the return header 22 and the return water port 48 of the water unit 2. This is done via the piping 53.

  Therefore, at the time of construction of the outdoor unit 1 and the water unit 2, two water pipes for passing the first water pipe 52 for return and the second water pipe 53 for return are passed through the wall of the building. It is only necessary to open a single hole or a hole for collectively passing, and a small hole for passing the thin communication line 33 that connects the remote controller 32 and the control unit 14 of the water unit 2. Can also be reduced. In addition, the appearance of the building can be greatly improved. Or even if it is a case where the hole for passing the two water pipes 52 and 53 together and the hole for passing the communication line 33 are combined with one hole, the first to fourth thermal valves 23 to Compared with the case where 26 is installed outdoors, the diameter of the hole opened in the wall of a building can be made small. Therefore, the workability and the appearance of the building can be improved.

  In addition, the control unit 14 of the water unit 2 and the first to fourth thermal valves 23 to 26 of the header unit 3 communicate with each other through the relay terminal 34 installed in the header box. The line 35 and the header unit external communication line 36 are used. Therefore, when the outdoor unit 1 and the water unit 2 are installed, there is no need for the troublesome work of directly connecting the header unit external communication line 36 to the respective drive parts of the first to fourth thermal valves 23 to 26. The property can be further improved.

  At that time, as a relay used for the indoor side communication line 35 and the outdoor side communication line 36, not a semiconductor relay that easily generates noise but a mechanical relay that hardly generates noise is used. Accordingly, noise can be reduced even when the total length of the communication lines 34 and 35 is as long as 5 to 20 m.

  Hereinafter, a modification of FIG. 1 will be described.

  FIG. 3 is a diagram showing a schematic configuration of a temperature control system that can also perform indoor air conditioning. 3, the same members as those in FIG. 1 are denoted by the same reference numerals as those in FIG. 1, and detailed description thereof is omitted.

  In this modification, in addition to the outdoor unit 1, the water unit 2 connected to the outdoor unit 1, and the header unit 3 connected to the water unit 2, the first, Second indoor heat exchangers 61 and 62 are provided. Here, the first indoor heat exchanger 61 has one end connected to the outdoor heat exchanger 6 via the first electric expansion valve 63 and the other end connected to the four-way valve 5. The second indoor heat exchanger 62 has one end connected to the outdoor heat exchanger 6 via the second electric expansion valve 64 and the other end connected to the four-way valve 5.

  Also, a fourth temperature sensor 65 that detects the temperature of the refrigerant between the electric expansion valve 7 and the plate-type water heat exchanger 9, and a position between the first electric expansion valve 63 and the first indoor heat exchanger 61. It has the 5th temperature sensor 66 which detects the temperature of a refrigerant | coolant, and the 6th temperature sensor 67 which detects the temperature of the refrigerant | coolant between the 2nd electric expansion valve 64 and the 2nd indoor heat exchanger 62.

  Further, a seventh temperature sensor 68 that detects the temperature of the refrigerant between the four-way valve 5 and the plate-type water heat exchanger 9, and the temperature of the refrigerant between the four-way valve 5 and the first indoor heat exchanger 61 are as follows. It has an eighth temperature sensor 69 for detecting, and a ninth temperature sensor 70 for detecting the temperature of the refrigerant between the four-way valve 5 and the second indoor heat exchanger 62.

  Furthermore, a tenth temperature sensor 71 that detects the temperature of the refrigerant in the first indoor heat exchanger 61 is attached to the first indoor heat exchanger 61. Further, an eleventh temperature sensor 72 that detects the room temperature is disposed in the vicinity of the first indoor heat exchanger 61. Similarly, a twelfth temperature sensor 73 that detects the temperature of the refrigerant in the second indoor heat exchanger 62 is attached to the second indoor heat exchanger 62. A thirteenth temperature sensor 74 that detects the room temperature is disposed in the vicinity of the second indoor heat exchanger 62.

  And the said outdoor control apparatus 13 heats the plate-type water heat exchanger 9 and the 1st, 2nd indoor heat exchanger 61,62 based on the detected value from each said temperature sensor 10-12,65-74. The inverter (not shown) of the compressor 4 is controlled so that the exchange efficiency is optimal, and the opening degrees of the electric expansion valve 7 and the first and second electric expansion valves 63 and 64 are controlled.

  The temperature control system operates as follows.

  First, during the heating operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and partly flows into the plate-type water heat exchanger 9, while the other is the first and second indoor heat exchangers. 61,62. Then, the refrigerant that has been condensed by exchanging heat with the indoor air in the first and second indoor heat exchangers 61 and 62 is expanded and depressurized by the first and second electric expansion valves 63 and 64, and the outdoor heat exchanger. 6, after absorbing heat from outdoor air and evaporating, it passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4.

  In this case, the operations on the side of the water unit 2 and the header unit 3 including the plate type water heat exchanger 9 are as described in FIG.

  Next, during the cooling operation, the refrigerant discharged from the compressor 4 passes through the four-way valve 5 and is supplied to the outdoor heat exchanger 6 to be condensed by heat exchange with outdoor air. A part of the condensed refrigerant is decompressed by the electric expansion valve 7 and flows into the plate type water heat exchanger 9, and the other is decompressed by the first and second electric expansion valves 63 and 64 to be the first and second electric expansion valves. 2 flows into the indoor heat exchangers 61 and 62. Then, the refrigerant that has absorbed heat and evaporated from the indoor air in the first and second indoor heat exchangers 61 and 62 passes through the four-way valve 5 and the accumulator 8 and returns to the compressor 4.

  In this case, the operations on the side of the water unit 2 and the header unit 3 including the plate type water heat exchanger 9 are as described in FIG.

  Thus, according to this modification, the indoor air conditioning by the first and second indoor heat exchangers 61 and 62 and the floor air conditioning by the plate type water heat exchanger 9 can be performed in parallel. is there.

  In the above embodiment and its modification, the outdoor unit 1 and the water unit 2 are separately configured. In that case, piping work and wiring work between the outdoor unit 1 and the water unit 2 become unnecessary, and further improvement in workability can be achieved.

  Further, in the above-described embodiment and its modification, the specific installation location of the header unit 3 having the forward header 21, the return header 22, the first to fourth thermal valves 23 to 26, and the relay terminal 34 is clearly indicated. However, it is desirable to install it under the floor where the first and second floor cooling / heating panels 27 and 28 connected to the first to fourth thermal valves 23 to 26 and the return header 22 are installed. In that case, the piping for connecting the first and second thermal valves 23 and 24 and the return header 22 to the first and second floor cooling and heating panels 27 and 28 is shortened, and the header unit 3 is installed from the room. The room can be refreshed without it.

  Moreover, in the said embodiment and its modification, while connecting the 1st-4th thermal valve 23-26 to the said going header 21, the return header 22 of the 1st, 2nd floor air conditioning panel 27,28 is connected. The water outlet is connected. However, the present invention is not limited to this, and the water inlets of the first and second floor cooling / heating panels 27, 28 are connected to the forward header 21, while the first to fourth thermal valves 23 are connected to the return header 22. ~ 26 may be connected.

  Next, another modified example different from the modified example shown in FIG. 3 will be described.

  In the embodiment and the modification thereof, the water unit 2 is installed outdoors. However, the water unit 2 is not always installed outdoors. For example, in a cold district or the like, in order to prevent the return water from flowing from the first and second floor cooling / heating panels 27 and 28 flowing in the second water pipe 53 of the water circuit 29 to the water unit 2, The first and second floor cooling / heating panels 27 and 28 may be installed in, for example, a parking lot, a basement, a storage room, or the like partitioned by a wall.

  Even in that case, when the outdoor unit 1 and the water unit 2 are constructed, a refrigerant flow path that connects the electric expansion valve 7 and the plate-type water heat exchanger 9 to the wall of the building, and the four-way valve 5 and It is only necessary to open two holes for passing two refrigerant pipes of the refrigerant flow path connecting the plate type water heat exchanger 9 or a hole for passing them together, improving workability and reducing costs. Can do. In addition, the appearance of the building can be greatly improved.

  Further, on the wall that divides the room in which the first and second floor cooling / heating panels 27 and 28 are installed and the room in which the water unit 2 is installed, the first water pipe 52 for return and the second for return. Two holes for passing two water pipes with the water pipe 53 or a hole for passing them together, and a small communication line 33 for connecting the remote control 32 and the control unit 14 of the water unit 2 through a small communication line 33 It is only necessary to open a hole, so that the workability can be improved and the cost can be reduced. In addition, the appearance of the walls separating the two rooms can be greatly improved.

  In the above-described embodiment and its modifications, at least one of the floor cooling / heating panels 27, 28 is a ceiling cooling / heating panel, ceiling cooling panel, ceiling heating panel, wall cooling / heating panel, wall cooling panel, wall heating panel, or It may be replaced with a heat exchange terminal such as an indoor radiator. That is, as another example of the predetermined supply destination, there is a heat exchange terminal such as a ceiling cooling / heating panel, a ceiling cooling panel, a ceiling heating panel, a wall cooling / heating panel, a wall cooling panel, a wall heating panel, or an indoor radiator. .

1 ... outdoor unit,
2 ... water unit,
3 ... Header unit,
4 ... Compressor,
5 ... Four-way valve,
6 ... outdoor heat exchanger,
7 ... Electric expansion valve,
9 ... Plate type water heat exchanger,
13 ... Outdoor control device 14 ... Control unit,
15 ... expansion tank,
16 ... circulation pump,
21 ... Outgoing header,
22 ... Return header,
23 to 26 ... first to fourth thermal valves,
27, 28 ... 1st, 2nd floor air conditioning panel,
29 ... Water circuit,
32 ... remote control,
33 ... communication line,
34 ... Relay terminal,
35 ... Communication line in header unit,
36 ... Communication line outside the header unit,
44, 45 ... first and second water pipes,
46 ... discharge pipe,
48 ... Return water port,
51. Outbound water port,
52, 53 ... first and second water pipes,
61, 62 ... first and second indoor heat exchangers,
63, 64: first and second electric expansion valves.

Claims (6)

A water unit (2) for generating hot or cold water and having a control unit (14);
Hot water or cold water generated by the water unit (2) is guided to a predetermined supply destination (27, 28), while return water generated at the predetermined supply destination (27, 28) is returned to the water unit (2). Headers (21, 22) connected to the water unit (2) via water pipes (52, 53) for guiding to
A plurality of thermal valves (23 to 26) connected to the header (21),
The water unit (2) and the header (21, 22) are installed across a wall for forming a room in the building,
The control unit (14) is connected to the thermal valves (23 to 26) via communication lines (35, 36), and controls the opening and closing operations of the thermal valves (23 to 26). A temperature control system characterized by that. In the temperature control system according to claim 1,
The temperature control system, wherein the water unit (2) is installed outdoors, and the headers (21, 22) and the plurality of thermal valves (23-26) are installed indoors. In the temperature control system according to claim 1 or 2,
Provided in the header unit (3) having the header (21, 22) and the thermal valve (23-26), and provided with a relay terminal (34) for relaying the communication lines (35, 36),
The communication lines (35, 36) are mainly composed of an external header unit communication line (36) disposed outside the header unit (3) and an intra-header unit communication line (35) disposed within the header unit (3). )
The temperature control system, wherein the header unit external communication line (36) is connected to the header unit communication line (35) via the relay terminal (34). In the temperature control system according to any one of claims 1 to 3,
A temperature control system comprising a mechanical relay connected to the communication lines (35, 36). In the temperature control system according to any one of claims 1 to 4,
The temperature control system, wherein the headers (21, 22) and the plurality of thermal valves (23 to 26) are installed under an indoor floor. In the temperature control system according to any one of claims 1 to 5,
A heat source unit (1) that generates a high-temperature heat medium or a low-temperature heat medium and supplies it to the water unit (2);
The said water unit (2) is comprised integrally with the said heat-source unit (1), The temperature control system characterized by the above-mentioned.

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